AFM 210: Introduction to Aquatic Resources Management Flashcards

A set of 10 practice flashcards covering terms, data, and concepts from the AFM 210 lecture on fisheries management and aquatic resources.

How is 'Fisheries Management' defined in the context of aquatic resource principles?

Fisheries Management is the rational exploitation and conservation of the aquatic resources in such a way that these resources are maintained on a sustainable yield basis.

According to the lecture, what are the three interacting components that must be considered when defining a fishery?

The three interacting components are the aquatic biota, the aquatic habitat, and the human users of these renewable natural resources.

What is the established width of the Exclusive Economic Zone (EEZ) for coastal nations?

The EEZ is established as a standard $200\text{ nautical miles}$ wide fishing area from the base lines.

What specific adaptive structure do mangroves possess to facilitate breathing in saline coastal environments?

Mangroves have elaborate tube-like breathing structures called pneumatophores which grow vertically upwards from the roots.

Which wetland is identified as the largest in Africa and the third largest in the world?

The Niger Delta.

In Biofloc technology, what is the range for dry weight protein content in the resulting flocs?

The dry weight protein in Biofloc ranges from $25 - 50\%$.

What is the stocking density for fish in a well-managed intensive fish farming system?

The stocking density ranges from $10 - 50\text{ fish/m}^{3}$ of water.

According to the principles of fish culture, what is the critical oxygen level below which fish will die?

Fish die if the oxygen in the water falls below $1.0\text{ ppm}$.

What is the primary biological basis for the practice of polyculture?

The motivating principle is that fish production in ponds may be maximized by raising a combination of species having different food habits to better utilize natural food at different depths.

What does the destructive fishing method known as 'Blast Fishing' involve?

It involves the use of dynamite or homemade bombs that are detonated in the water, indiscriminately killing all marine life and destroying coral reefs and seabed habitats.